<s>
xzgv	B-Language
is	O
a	O
simple	O
,	O
small	O
software	O
utility	O
that	O
can	O
be	O
used	O
for	O
viewing	O
digital	O
images	O
or	O
pictures	O
of	O
several	O
formats	O
,	O
e.g.	O
,	O
JPEG	O
,	O
GIF	O
,	O
PNG	O
,	O
etc	O
.	O
</s>
<s>
xzgv	B-Language
is	O
used	O
on	O
computers	O
using	O
a	O
Unix-like	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
and	O
the	O
X	B-Operating_System
Window	I-Operating_System
System	I-Operating_System
.	O
</s>
<s>
Because	O
xzgv	B-Language
is	O
a	O
fast	O
,	O
lightweight	O
image	B-Application
viewer	I-Application
that	O
is	O
compatible	O
with	O
a	O
large	O
number	O
of	O
image	O
formats	O
,	O
the	O
viewer	O
is	O
popular	O
on	O
older	O
,	O
slower	O
,	O
resource-challenged	O
computer	O
systems	O
.	O
</s>
<s>
xzgv	B-Language
is	O
a	O
standard	O
utility	O
in	O
the	O
Damn	B-Operating_System
Small	I-Operating_System
Linux	I-Operating_System
distribution	O
,	O
for	O
example	O
.	O
</s>
<s>
Xzgv	B-Language
was	O
originally	O
built	O
as	O
an	O
X11-compatible	O
clone	O
of	O
zgv	B-Language
by	O
the	O
same	O
developer	O
.	O
</s>
<s>
The	O
versions	O
prior	O
to	O
0.9	O
were	O
based	O
on	O
the	O
software	O
toolkits	O
GTK+	B-Application
and	O
Imlib	O
1.x	O
.	O
</s>
<s>
Most	O
file	O
formats	O
are	O
supported	O
,	O
and	O
the	O
thumbnails	O
used	O
are	O
compatible	O
with	O
xv	B-Application
,	O
zgv	B-Language
,	O
and	O
GIMP	B-Application
.	O
</s>
<s>
Xzgv	B-Language
differs	O
from	O
other	O
viewers	O
in	O
that	O
it	O
uses	O
one	O
window	O
for	O
both	O
the	O
file	O
selector	O
and	O
viewer	O
.	O
</s>
<s>
xzgv	B-Language
incorporates	O
a	O
thumbnail-based	O
file	O
selector	O
and	O
is	O
designed	O
to	O
be	O
functional	O
without	O
using	O
a	O
mouse	O
.	O
</s>
<s>
Xzgv	B-Language
is	O
not	O
an	O
image	O
editor	O
,	O
and	O
much	O
of	O
its	O
resource	O
efficiency	O
came	O
from	O
the	O
decision	O
to	O
avoid	O
any	O
image	O
modification	O
support	O
.	O
</s>
<s>
According	O
to	O
its	O
man	B-Protocol
page	I-Protocol
,	O
xzgv	B-Language
supports	O
the	O
following	O
file	O
formats	O
:	O
GIF	O
,	O
JPEG	O
,	O
PNG	O
,	O
PBM/PGM/PPM	O
(	O
collectively	O
known	O
as	O
`PNM	O
 '	O
)	O
,	O
BMP	B-Device
,	O
TGA	O
(	O
Targa	O
)	O
,	O
PCX	O
,	O
mrf	O
,	O
PRF	O
,	O
XBM	B-Device
(	O
X	B-Device
bitmap	I-Device
files	O
)	O
,	O
XPM	O
,	O
TIFF	O
,	O
TIM	O
(	O
the	O
Sony	O
PlayStation	O
)	O
,	O
and	O
XWD	B-Protocol
(	O
X	B-Operating_System
window	I-Operating_System
dumps	O
,	O
as	O
produced	O
by	O
the	O
X	B-Operating_System
Window	I-Operating_System
utility	O
xwd	B-Protocol
)	O
.	O
</s>
